内燃機関の振動と騒音に関する基礎的研究 : 第4報,多重区分モード合成法による振動解析

概要

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The vibration of an internal combustion engine is analyzed by the multiple component mode synthesis method (MCMS) proposed by the authors. An engine is regarded as a combined system of a piston, a connecting rod, a crank shaft, a flywheel and a cylinder block. First, the vibration of the crank shaft is analyzed independently by the component mode synthesis method. The crank shaft is divided into 20 components, the natural modes of all components calculated by the finite element method are composed to make the equation of motion in the modal coordinates, and the vibration of the crank shaft is analyzed with this equation. Next, the vibration of the cylinder block is analyzed independently by MCMS. Finally the vibration of the total structure of the engine is analyzed by MCMS. All calculated results agree well with the experimental ones.
1986-04-25